\begin{table}%T2
\caption{Values of $H_0t_0$ for the different equations of state of dark energy and different 
$\Omega_{{\rm m0}}$ for $\epsilon=0$.}
\label{table2}
%\centering
\par
\begin{tabular}{ccccc}
\hline\hline
\\[-3.5mm]
$w$ &  $\Omega_{{\rm m0}}=0.24$ & $\Omega_{{\rm m0}}=0.27$ & 
$\Omega_{{\rm m0}}=0.30$ & $\Omega_{{\rm m0}}=0.33$\\[0.5mm]
\hline
\\[-3.5mm]
$-$1/3 & 0.8302 & 0.8191 & 0.8088 & 0.7991 \\
$-$2/3 & 0.9473 & 0.9241 & 0.9033 & 0.8844 \\
$-$1   & 1.0251 & 0.9927 & 0.9641 & 0.9386 \\
$-$4/3 & 1.0790 & 1.0399 & 1.0057 & 0.9754 \\
\hline
\end{tabular}
\end{table}